On the dark iron door, peculiar patterns are carved, intertwining with each other, subtly exuding a mysterious aura.

    Brother Ke Yi and the others were puzzled, but only Su Nan recognized these patterns at a glance.

    Enchanted Runes!

    The structure of the runes was not complex; they seemed to be a simple magical trap.

    Once someone touched the iron door, it would emit a warning and attack the toucher.

    However, these runes had already dimmed and were clearly ineffective, likely due to the erosion over many years.

    No matter how exquisite the enchanted runes are, they cannot escape the ravages of time.

    ‘Is the place behind that iron door where they create the Iron-Eating Beasts?’

    Brother Ke Yi looked at Su Nan, who nodded and reminded them once more.

    ‘Be careful, those Iron-Eating Beasts won’t just sit and watch us walk in.’

    As if in response to Su Nan’s words, as soon as his voice fell, Iron-Eating Beasts suddenly emerged from the rock walls on both sides of the iron door, rushing towards the group with a fierce wind.

    The group was well-prepared, shouted in determination, and fearlessly charged forward.

    Only Bred stepped back a few paces and positioned his heavy shield in front of Su Nan.

    After witnessing Su Nan’s methods, everyone understood that Su Nan was the main force against the Iron-Eating Beasts, and naturally, they would not neglect his safety.

    Su Nan softly uttered strange syllables. This time, instead of using Acid Spray, he used Mage Hand.

    Over ten meters away, an Iron-Eating Beast that was leaping towards Brother Ke Yi suddenly halted, its body defying gravity and suspended in mid-air, flailing its limbs, unable to land.

    Brother Ke Yi’s eyes lit up. Seizing the opportunity, he darted forward, slashing several times at the same spot on the Iron-Eating Beast’s neck, severing its head.

    The headless Iron-Eating Beast quickly fell to the ground, motionless and silent.

    Compared to the single attack of the Acid Spray, the Mage Hand had a smaller attack power but a longer duration, ideal for assisting Brother Ke Yi in slaying the Iron-Eating Beasts.

    ‘Luckily, the low-level golem’s intelligence is not high and doesn’t understand the strategy of killing the fragile spellcaster first, otherwise, if these creatures swarmed us, Bred alone might not be able to hold them back.’

    Su Nan pondered silently.

    Of course, if the Iron-Eating Beasts weren’t golem creations, he wouldn’t only use Acid Spray and Mage Hand to deal with them.

    One Flash Spell, and these creatures, living long in the dark underground and extremely sensitive to light, would instantly become blind, ready for slaughter.

    With the group’s coordinated efforts, the Iron-Eating Beasts fell one by one.

    As Su Nan speculated, the Iron-Eating Beasts’ task was to guard the iron door.

    So even with heavy casualties, they showed no signs of retreating.

    More than ten minutes later, with a crisp snap, the last Iron-Eating Beast was cut in two and fell to the ground.

    Thus, over twenty Iron-Eating Beasts were completely annihilated.

    Looking at the ground littered with fragments of black stone and iron, Brother Ke Yi’s face was filled with irrepressible excitement and joy.

    Before coming here, he never imagined that the greatest threat of the Blackstone Mine would be resolved so easily!

    And all of this was thanks to Su Nan.

    Gazing at Su Nan’s back, Brother Ke Yi couldn’t help but be filled with emotion.

    When Su Nan initially said he wanted to become a wizard, Brother Ke Yi thought he was being foolish, driven mad by reading too many books.

    Unexpectedly, not only did he succeed, but he also became so formidable, with all sorts of strange and powerful means emerging one after another, astonishing everyone.

    Even Brother Ke Yi felt a bit tempted.
    When I return to the inner fortress, should I also try to see if I can walk the path of a wizard?

    Su Nan didn’t notice Brother Ke Yi’s little thoughts, quickly stepping to the iron gate to examine it closely.

    Sure enough, as expected, the magical trap on the gate had already been disarmed.

    So, Su Nan called over two knights to push open the heavy iron gate together.

    Boom!

    The iron gate slowly opened, causing stone dust to fall incessantly from above, raising a cloud of dust.

    Only when the dust cleared did the scene behind the iron gate gradually become visible to everyone.

    Inside was an incredibly spacious hall, about four to five hundred square meters in size.

    The entire hall was paved with square grayish-blue stone bricks, covered with a thick layer of accumulated dust. In many places, there were disordered footprints and marks suggesting places where beasts had lain.

    It was apparent that this hall was the usual activity area of the Iron Devourer Beasts.

    Deeper inside the hall were three open stone doors, dark and obscure, making it unclear what lay inside.

    Several knights, holding torches, separately entered the three stone doors. After confirming there was no danger, Su Nan and Brother Ke Yi entered within the stone doors.

    Behind the first stone door was a room that seemed like a warehouse, extraordinarily large and filled densely with Blackstone Iron.

    These were not newly mined Blackstone iron ores, but already refined Blackstone iron ingots.

    Looking at the hundreds of thousands of neatly stacked Blackstone iron ingots, everyone’s expression was somewhat dazed.

    ‘We’ve struck it rich!’

    Jodun stared fixedly at the Blackstone iron ingots in front of him, swallowing audibly.

    No one mocked his loss of composure; everyone had similar expressions.

    Even Brother Ke Yi’s eyes were wide with shock, joy, and confusion, leaving his face distorted from the mix of emotions.

    Though the hardness of Blackstone Iron isn’t inferior to refined iron, it’s much lighter, thus pricier than refined iron of the same weight.

    These Blackstone irons before them, though not worth a fortune, were definitely worth six or seven thousand gold coins.

    That’s nearly equivalent to ten years of taxes for Blackstone City!

    Such a windfall, how could it not drive people wild with joy?

    Only Su Nan had little attachment to gold coins. Though surprised, he quickly regained his composure and walked toward the next room.

    The second room was slightly smaller, filled with various tools, including a blacksmith’s forge, molds, and a blower.

    However, most striking was the enormous stone table over three meters long and nearly two meters wide, placed at the center of the room.

    Its surface was covered with chaotic cutting marks.

    Su Nan glanced at the pile of Blackstone iron in the corner of the room, instantly realizing.

    This must have been the laboratory where the wizard’s apprentice was crafting golems.

    He had already ruled out the place’s owner being a formal wizard.

    Both the capability level of the Iron Devourers and the expertise shown by the magical trap on the iron gate suggested that the owner here could be at most an apprentice, far from reaching the level of a true wizard.

    If it were a formal wizard, their group alone would have no chance of breaking through the guards outside to get here.

    While his mind was racing, Su Nan’s actions were quick. He thoroughly searched the entire room in a short time.

    What disappointed him was that, besides those tools and iron ingots, he found nothing else of value.

    Su Nan shook his head, turned to leave the room, and entered the third room.

    Compared to the previous two rooms, the third room was smaller but more elegantly and comfortably decorated. Besides a small bed and desk, there was also a bookshelf, indicating it was a study.

    Su Nan’s gaze fell on the book-filled bookshelf, his eyes brightening slightly.